4001.22.00/SIR 20 Technically Specified Natural Rubber/Mexico

SIR 20 Technically Specified Natural Rubber from Mexico

SIR 20 is a standard grade of Technically Specified Natural Rubber (TSNR) produced from coagulated natural latex, meeting the specifications of the International Rubber Study Group for dirt content, ash, and nitrogen levels. It is supplied in 35kg rectangular bales wrapped in thin polyethylene film. Classified under HTS 4001.22.00 as TSNR in primary bale form, not compounded with vulcanizing agents or fillers beyond permitted additives.

Duty Rate — Mexico → United States

0%

Rate breakdown

9903.03.030%Articles the product of any country, as provided for in subdivision (aa)(ii) of U.S. note 2 to this subchapter
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Import Tips

• Verify TSNR grade certification from accredited labs showing compliance with IRSG standards for ash (<0.75%), dirt (<0.10%), and nitrogen content

• Ensure bales are properly marked with grade, origin, and production date; provide mill test certificates for customs clearance

• Avoid misclassification by confirming no vulcanizing agents or excessive fillers are present, which would shift to heading 4004 or 4005